Boston Capital Tax Credit Fund IV LP

Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities

$ 1,304,859

$ 9,020,023

(3,086,786)

(11,305,952)

(Decrease) Increase in accounts payable and accrued expenses

987,419

(46,259)

1,285

Net cash (used in) provided by operating activities

(4,368,397)

(6,979,847)

(5,162,905)

(9,310,750)

Capital contributions paid to Operating Partnerships

(19,011)

Proceeds from the disposition of Operating Partnerships

2,954,134

^[1]

11,061,047

^[2]

Net cash (used in) provided by investing activities

2,954,134

11,042,036

(1,331,500)

(420,163)

(1,331,500)

(420,163)

(3,540,271)

1,311,123

27,208,717

27,209,997

Supplemental schedule of noncash investing and financing activities:

23,668,446

28,521,120

The general partner's equity balance was increased and accounts payable affiliates were reduced as a result of forgiveness of debt with an affiliate of the general partner.

5,403,788

1,070,891

The Fund applied notes receivable and advances to its capital contribution obligation to Operating Partnerships.

127,351

Series Twenty [Member]

Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities

128,979

(3,202)

(197,337)

(42,000)

(Decrease) Increase in accounts payable and accrued expenses

2,000

Net cash (used in) provided by operating activities

(370,966)

16,607

(439,324)

(26,595)

Capital contributions paid to Operating Partnerships

Proceeds from the disposition of Operating Partnerships

197,337

^[1]

42,000

^[2]

Net cash (used in) provided by investing activities

197,337

42,000

(241,987)

15,405

241,987

271,060

Supplemental schedule of noncash investing and financing activities:

286,465

The general partner's equity balance was increased and accounts payable affiliates were reduced as a result of forgiveness of debt with an affiliate of the general partner.

1,073,757

The Fund applied notes receivable and advances to its capital contribution obligation to Operating Partnerships.

Series Twenty One [Member]

Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities

9,244

(67,000)

(Decrease) Increase in accounts payable and accrued expenses

Net cash (used in) provided by operating activities

(250,346)

(308,102)

Capital contributions paid to Operating Partnerships

Proceeds from the disposition of Operating Partnerships

67,000

^[2]

Net cash (used in) provided by investing activities

67,000

(241,102)

241,102

Supplemental schedule of noncash investing and financing activities:

The general partner's equity balance was increased and accounts payable affiliates were reduced as a result of forgiveness of debt with an affiliate of the general partner.

1,070,891

The Fund applied notes receivable and advances to its capital contribution obligation to Operating Partnerships.

Series Twenty Two [Member]

Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities

(38,144)

(48,307)

(38,000)

(Decrease) Increase in accounts payable and accrued expenses

Net cash (used in) provided by operating activities

(183,720)

21,909

(259,864)

(26,398)

Capital contributions paid to Operating Partnerships

Proceeds from the disposition of Operating Partnerships

38,000

^[1]

Net cash (used in) provided by investing activities

38,000

(221,864)

(26,398)

221,864

252,064

Supplemental schedule of noncash investing and financing activities:

225,666

The general partner's equity balance was increased and accounts payable affiliates were reduced as a result of forgiveness of debt with an affiliate of the general partner.

2,694,389

The Fund applied notes receivable and advances to its capital contribution obligation to Operating Partnerships.

Series Twenty Three [Member]

Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities

(27,002)

951,455

(43,500)

(989,962)

(Decrease) Increase in accounts payable and accrued expenses

Net cash (used in) provided by operating activities

(419,134)

(471,882)

(489,636)

(510,389)

Capital contributions paid to Operating Partnerships

Proceeds from the disposition of Operating Partnerships

43,500

^[1]

989,962

^[2]

Net cash (used in) provided by investing activities

43,500

989,962

(446,136)

479,573

446,136

659,167

Supplemental schedule of noncash investing and financing activities:

1,138,740

The general partner's equity balance was increased and accounts payable affiliates were reduced as a result of forgiveness of debt with an affiliate of the general partner.

514,253

The Fund applied notes receivable and advances to its capital contribution obligation to Operating Partnerships.

Series Twenty Four [Member]

Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities

(33,882)

(62,114)

(23,678)

(Decrease) Increase in accounts payable and accrued expenses

(2,000)

Net cash (used in) provided by operating activities

(59,560)

(62,114)

Capital contributions paid to Operating Partnerships

Proceeds from the disposition of Operating Partnerships

23,678

^[1]

Net cash (used in) provided by investing activities

23,678

(35,882)

(62,114)

453,512

427,181

Supplemental schedule of noncash investing and financing activities:

417,630

365,067

The general partner's equity balance was increased and accounts payable affiliates were reduced as a result of forgiveness of debt with an affiliate of the general partner.

The Fund applied notes receivable and advances to its capital contribution obligation to Operating Partnerships.

Series Twenty Five [Member]

Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities

34,406

(97,399)

(Decrease) Increase in accounts payable and accrued expenses

1,250

Net cash (used in) provided by operating activities

(61,743)

Capital contributions paid to Operating Partnerships

Proceeds from the disposition of Operating Partnerships

97,399

^[2]

Net cash (used in) provided by investing activities

97,399

(380,117)

(380,117)

(344,461)

344,461

Supplemental schedule of noncash investing and financing activities:

The general partner's equity balance was increased and accounts payable affiliates were reduced as a result of forgiveness of debt with an affiliate of the general partner.

The Fund applied notes receivable and advances to its capital contribution obligation to Operating Partnerships.

Series Twenty Six [Member]

Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities

(69,952)

(14,748)

(10,500)

(80,000)

(Decrease) Increase in accounts payable and accrued expenses

Net cash (used in) provided by operating activities

(80,452)

(94,748)

Capital contributions paid to Operating Partnerships

Proceeds from the disposition of Operating Partnerships

10,500

^[1]

80,000

^[2]

Net cash (used in) provided by investing activities

10,500

80,000

(69,952)

(14,748)

642,258

677,679

Supplemental schedule of noncash investing and financing activities:

572,306

662,931

The general partner's equity balance was increased and accounts payable affiliates were reduced as a result of forgiveness of debt with an affiliate of the general partner.

The Fund applied notes receivable and advances to its capital contribution obligation to Operating Partnerships.

Series Twenty Seven [Member]

Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities

3,811

3,213,442

(3,291,567)

(Decrease) Increase in accounts payable and accrued expenses

(31,673)

Net cash (used in) provided by operating activities

3,811

(109,798)

Capital contributions paid to Operating Partnerships

Proceeds from the disposition of Operating Partnerships

3,291,567

^[2]

Net cash (used in) provided by investing activities

3,291,567

(310,963)

(310,963)

(307,152)

3,181,769

6,799,933

3,606,473

Supplemental schedule of noncash investing and financing activities:

6,492,781

6,788,242

The general partner's equity balance was increased and accounts payable affiliates were reduced as a result of forgiveness of debt with an affiliate of the general partner.

The Fund applied notes receivable and advances to its capital contribution obligation to Operating Partnerships.

Series Twenty Eight [Member]

Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities

(41,125)

(56,401)

(8,500)

(Decrease) Increase in accounts payable and accrued expenses

Net cash (used in) provided by operating activities

(49,625)

(56,401)

Capital contributions paid to Operating Partnerships

Proceeds from the disposition of Operating Partnerships

8,500

^[1]

Net cash (used in) provided by investing activities

8,500

(41,125)

(56,401)

742,564

812,483

Supplemental schedule of noncash investing and financing activities:

701,439

756,082

The general partner's equity balance was increased and accounts payable affiliates were reduced as a result of forgiveness of debt with an affiliate of the general partner.

The Fund applied notes receivable and advances to its capital contribution obligation to Operating Partnerships.

Series Twenty Nine [Member]

Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities

64,364

(92,645)

(123,094)

(Decrease) Increase in accounts payable and accrued expenses

Net cash (used in) provided by operating activities

(489,986)

61,640

(548,716)

(31,005)

Capital contributions paid to Operating Partnerships

Proceeds from the disposition of Operating Partnerships

122,994

^[1]

Net cash (used in) provided by investing activities

122,994

(425,722)

(31,005)

622,414

345,648

Supplemental schedule of noncash investing and financing activities:

196,692

314,643

The general partner's equity balance was increased and accounts payable affiliates were reduced as a result of forgiveness of debt with an affiliate of the general partner.

The Fund applied notes receivable and advances to its capital contribution obligation to Operating Partnerships.

Series Thirty [Member]

Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities

114,811

247,358

(195,182)

(265,984)

(Decrease) Increase in accounts payable and accrued expenses

(3,500)

Net cash (used in) provided by operating activities

(499,568)

41,872

(583,439)

23,246

Capital contributions paid to Operating Partnerships

Proceeds from the disposition of Operating Partnerships

130,006

^[1]

226,021

^[2]

Net cash (used in) provided by investing activities

130,006

226,021

(453,433)

249,267

453,433

270,126

Supplemental schedule of noncash investing and financing activities:

519,393

The general partner's equity balance was increased and accounts payable affiliates were reduced as a result of forgiveness of debt with an affiliate of the general partner.

1,121,389

The Fund applied notes receivable and advances to its capital contribution obligation to Operating Partnerships.

Series Thirty One [Member]

Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities

28,117

(53,974)

(105,794)

(45,000)

(Decrease) Increase in accounts payable and accrued expenses

Net cash (used in) provided by operating activities

(77,677)

(98,974)

Capital contributions paid to Operating Partnerships

Proceeds from the disposition of Operating Partnerships

64,500

^[1]

45,000

^[2]

Net cash (used in) provided by investing activities

64,500

45,000

(13,177)

(53,974)

1,971,680

2,047,648

Supplemental schedule of noncash investing and financing activities:

1,958,503

1,993,674

The general partner's equity balance was increased and accounts payable affiliates were reduced as a result of forgiveness of debt with an affiliate of the general partner.

The Fund applied notes receivable and advances to its capital contribution obligation to Operating Partnerships.

Series Thirty Two [Member]

Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities

388,455

1,586,646

(487,880)

(1,677,252)

(Decrease) Increase in accounts payable and accrued expenses

(2,000)

Net cash (used in) provided by operating activities

(726,205)

(1,108,083)

(825,630)

(1,200,689)

Capital contributions paid to Operating Partnerships

Proceeds from the disposition of Operating Partnerships

487,880

^[1]

1,677,252

^[2]

Net cash (used in) provided by investing activities

487,880

1,677,252

(337,750)

476,563

563,697

837,185

Supplemental schedule of noncash investing and financing activities:

225,947

1,313,748

The general partner's equity balance was increased and accounts payable affiliates were reduced as a result of forgiveness of debt with an affiliate of the general partner.

The Fund applied notes receivable and advances to its capital contribution obligation to Operating Partnerships.

Series Thirty Three [Member]

Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities

(55,411)

23,189

(67,454)

(Decrease) Increase in accounts payable and accrued expenses

Net cash (used in) provided by operating activities

(166,986)

48,449

(222,397)

4,184

Capital contributions paid to Operating Partnerships

Proceeds from the disposition of Operating Partnerships

950

^[2]

Net cash (used in) provided by investing activities

950

(222,397)

5,134

452,033

337,765

Supplemental schedule of noncash investing and financing activities:

229,636

342,899

The general partner's equity balance was increased and accounts payable affiliates were reduced as a result of forgiveness of debt with an affiliate of the general partner.

The Fund applied notes receivable and advances to its capital contribution obligation to Operating Partnerships.

Series Thirty Four [Member]

Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities

(58,853)

(62,324)

(Decrease) Increase in accounts payable and accrued expenses

Net cash (used in) provided by operating activities

(112,903)

(393,594)

(171,756)

(455,918)

Capital contributions paid to Operating Partnerships

Proceeds from the disposition of Operating Partnerships

Net cash (used in) provided by investing activities

(171,756)

(455,918)

394,837

849,078

Supplemental schedule of noncash investing and financing activities:

223,081

393,160

The general partner's equity balance was increased and accounts payable affiliates were reduced as a result of forgiveness of debt with an affiliate of the general partner.

The Fund applied notes receivable and advances to its capital contribution obligation to Operating Partnerships.

Series Thirty Five [Member]

Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities

(27,398)

2,593,894

(2,653,528)

(Decrease) Increase in accounts payable and accrued expenses

Net cash (used in) provided by operating activities

(551,982)

(27,398)

(611,616)

Capital contributions paid to Operating Partnerships

Proceeds from the disposition of Operating Partnerships

2,653,528

^[2]

Net cash (used in) provided by investing activities

2,653,528

(27,398)

2,041,912

4,428,306

2,392,767

Supplemental schedule of noncash investing and financing activities:

4,400,908

4,434,679

The general partner's equity balance was increased and accounts payable affiliates were reduced as a result of forgiveness of debt with an affiliate of the general partner.

The Fund applied notes receivable and advances to its capital contribution obligation to Operating Partnerships.

Series Thirty Six [Member]

Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities

180,555

(41,191)

(253,104)

(Decrease) Increase in accounts payable and accrued expenses

570,319

Net cash (used in) provided by operating activities

(767,505)

497,770

(808,696)

Capital contributions paid to Operating Partnerships

Proceeds from the disposition of Operating Partnerships

253,104

^[1]

Net cash (used in) provided by investing activities

253,104

750,874

(808,696)

2,106,050

2,934,317

Supplemental schedule of noncash investing and financing activities:

2,856,924

2,125,621

The general partner's equity balance was increased and accounts payable affiliates were reduced as a result of forgiveness of debt with an affiliate of the general partner.

The Fund applied notes receivable and advances to its capital contribution obligation to Operating Partnerships.

Series Thirty Seven [Member]

Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities

1,015,799

104,304

(1,062,375)

(140,415)

(Decrease) Increase in accounts payable and accrued expenses

Net cash (used in) provided by operating activities

(513,149)

(1,538,773)

(559,725)

(1,574,884)

Capital contributions paid to Operating Partnerships

Proceeds from the disposition of Operating Partnerships

1,062,375

^[1]

1,977

^[2]

Net cash (used in) provided by investing activities

1,062,375

1,977

(1,020,537)

(1,020,537)

(517,887)

(1,572,907)

517,887

2,096,039

Supplemental schedule of noncash investing and financing activities:

523,132

The general partner's equity balance was increased and accounts payable affiliates were reduced as a result of forgiveness of debt with an affiliate of the general partner.

The Fund applied notes receivable and advances to its capital contribution obligation to Operating Partnerships.

Series Thirty Eight [Member]

Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities

12,660

(51,326)

(7,000)

(Decrease) Increase in accounts payable and accrued expenses

(6,543)

Net cash (used in) provided by operating activities

(18,234)

(1,515,985)

(12,574)

(1,573,854)

Capital contributions paid to Operating Partnerships

Proceeds from the disposition of Operating Partnerships

7,000

^[1]

Net cash (used in) provided by investing activities

7,000

(5,574)

(1,573,854)

1,492,145

3,042,864

Supplemental schedule of noncash investing and financing activities:

1,486,571

1,469,010

The general partner's equity balance was increased and accounts payable affiliates were reduced as a result of forgiveness of debt with an affiliate of the general partner.

The Fund applied notes receivable and advances to its capital contribution obligation to Operating Partnerships.

Series Thirty Nine [Member]

Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities

(48,069)

(17,779)

(Decrease) Increase in accounts payable and accrued expenses

(6,543)

Net cash (used in) provided by operating activities

(1,154,240)

(1,226,631)

Capital contributions paid to Operating Partnerships

Proceeds from the disposition of Operating Partnerships

17,779

^[2]

Net cash (used in) provided by investing activities

17,779

(40,046)

(40,046)

(1,248,898)

1,248,898

Supplemental schedule of noncash investing and financing activities:

The general partner's equity balance was increased and accounts payable affiliates were reduced as a result of forgiveness of debt with an affiliate of the general partner.

The Fund applied notes receivable and advances to its capital contribution obligation to Operating Partnerships.

Series Forty [Member]

Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities

(53,608)

485,584

(44,500)

(588,952)

(Decrease) Increase in accounts payable and accrued expenses

Net cash (used in) provided by operating activities

(148,422)

(8,631)

(246,530)

(111,999)

Capital contributions paid to Operating Partnerships

Proceeds from the disposition of Operating Partnerships

44,500

^[1]

588,952

^[2]

Net cash (used in) provided by investing activities

44,500

588,952

(202,030)

476,953

431,341

248,318

Supplemental schedule of noncash investing and financing activities:

229,311

725,271

The general partner's equity balance was increased and accounts payable affiliates were reduced as a result of forgiveness of debt with an affiliate of the general partner.

The Fund applied notes receivable and advances to its capital contribution obligation to Operating Partnerships.

Series Forty One [Member]

Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities

(77,399)

616,699

(14,000)

(782,887)

(Decrease) Increase in accounts payable and accrued expenses

(2,500)

1,218

Net cash (used in) provided by operating activities

(414,074)

84,650

(505,473)

(82,820)

Capital contributions paid to Operating Partnerships

Proceeds from the disposition of Operating Partnerships

14,000

^[1]

782,887

^[2]

Net cash (used in) provided by investing activities

14,000

782,887

(491,473)

700,067

741,152

322,902

Supplemental schedule of noncash investing and financing activities:

249,679

1,022,969

The general partner's equity balance was increased and accounts payable affiliates were reduced as a result of forgiveness of debt with an affiliate of the general partner.

The Fund applied notes receivable and advances to its capital contribution obligation to Operating Partnerships.

Series Forty Two [Member]

Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities

(8,892)

135,238

(54,322)

(262,279)

(Decrease) Increase in accounts payable and accrued expenses

1,500

1,000

(1,183)

Net cash (used in) provided by operating activities

(61,714)

(127,224)

Capital contributions paid to Operating Partnerships

(9,503)

Proceeds from the disposition of Operating Partnerships

54,322

262,279

Net cash (used in) provided by investing activities

54,322

252,776

(7,392)

125,552

1,327,017

1,072,528

Supplemental schedule of noncash investing and financing activities:

1,319,625

1,198,080

The general partner's equity balance was increased and accounts payable affiliates were reduced as a result of forgiveness of debt with an affiliate of the general partner.

The Fund applied notes receivable and advances to its capital contribution obligation to Operating Partnerships.

63,676

Series Forty Three [Member]

Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities

8,023

80,998

(75,520)

(225,500)

(Decrease) Increase in accounts payable and accrued expenses

363,500

Net cash (used in) provided by operating activities

(430,490)

170,998

(134,487)

26,496

Capital contributions paid to Operating Partnerships

(9,508)

Proceeds from the disposition of Operating Partnerships

49,438

^[1]

225,500

^[2]

Net cash (used in) provided by investing activities

49,438

215,992

(85,049)

242,488

854,364

351,638

Supplemental schedule of noncash investing and financing activities:

769,315

594,126

The general partner's equity balance was increased and accounts payable affiliates were reduced as a result of forgiveness of debt with an affiliate of the general partner.

The Fund applied notes receivable and advances to its capital contribution obligation to Operating Partnerships.

63,675

Series Forty Four [Member]

Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities

(159,974)

(166,421)

(Decrease) Increase in accounts payable and accrued expenses

Net cash (used in) provided by operating activities

185,889

184,956

25,915

18,535

Capital contributions paid to Operating Partnerships

Proceeds from the disposition of Operating Partnerships

Net cash (used in) provided by investing activities

25,915

18,535

84,006

66,324

Supplemental schedule of noncash investing and financing activities:

109,921

84,859

The general partner's equity balance was increased and accounts payable affiliates were reduced as a result of forgiveness of debt with an affiliate of the general partner.

The Fund applied notes receivable and advances to its capital contribution obligation to Operating Partnerships.

Series Forty Five [Member]

Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities

154,699

(231,767)

(342,500)

(Decrease) Increase in accounts payable and accrued expenses

57,600

Net cash (used in) provided by operating activities

(37,346)

156,418

(167,547)

(75,349)

Capital contributions paid to Operating Partnerships

Proceeds from the disposition of Operating Partnerships

342,500

^[1]

Net cash (used in) provided by investing activities

342,500

174,953

(75,349)

753,702

803,153

Supplemental schedule of noncash investing and financing activities:

928,655

727,804

The general partner's equity balance was increased and accounts payable affiliates were reduced as a result of forgiveness of debt with an affiliate of the general partner.

The Fund applied notes receivable and advances to its capital contribution obligation to Operating Partnerships.

Series Forty Six [Member]

Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities

(143,774)

(129,945)

(10,994)

(Decrease) Increase in accounts payable and accrued expenses

Net cash (used in) provided by operating activities

(23,103)

(6,325)

(166,877)

(147,264)

Capital contributions paid to Operating Partnerships

Proceeds from the disposition of Operating Partnerships

10,994

^[2]

Net cash (used in) provided by investing activities

10,994

(166,877)

(136,270)

466,399

651,129

Supplemental schedule of noncash investing and financing activities:

299,522

514,859

The general partner's equity balance was increased and accounts payable affiliates were reduced as a result of forgiveness of debt with an affiliate of the general partner.

The Fund applied notes receivable and advances to its capital contribution obligation to Operating Partnerships.

$ 0

[1]	Fund proceeds from disposition does not include $100, $65,176, $41,294 and $26,082, which was due to a writeoff of capital contribution payable as of December 31, 2018, for Series 29, Series 30, Series 31 and Series 43, respectively.
[2]	Fund proceeds from disposition does not include $39,963, $66,504 and $138,438 which was due to a writeoff of capital contribution payable as of December 31, 2017, for Series 30, Series 33 and Series 37, respectively.

XML 18 R7.htm IDEA: XBRL DOCUMENT

ORGANIZATION

9 Months Ended

Dec. 31, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block]

NOTE A – ORGANIZATION

Boston Capital Tax Credit Fund IV L.P. (the "Fund") was organized under the laws of the State of Delaware as of October 5, 1993, for the purpose of acquiring, holding, and disposing of limited partnership interests in operating partnerships which will acquire, develop, rehabilitate, operate and own newly constructed, existing or rehabilitated low-income apartment complexes ("Operating Partnerships"). Effective as of June 1, 2001 there was a restructuring and, as a result, the Fund's general partner was reorganized as follows. The general partner of the Fund continues to be Boston Capital Associates IV L.P., a Delaware limited partnership. The general partner of the general partner of the Fund is BCA Associates Limited Partnership, a Massachusetts limited partnership, whose sole general partner is C&M Management, Inc., a Massachusetts corporation and whose limited partners are Herbert F. Collins and John P. Manning. Mr. Manning is the principal of Boston Capital Partners, Inc. The limited partner of the general partner of the Fund is Capital Investment Holdings, a general partnership whose partners are various officers and employees of Boston Capital Partners, Inc. and its affiliates. The assignor limited partner is BCTC IV Assignor Corp., a Delaware corporation which is now wholly-owned by John P. Manning. 

Pursuant to the Securities Act of 1933, the Fund filed a Form S-11 Registration Statement with the Securities and Exchange Commission, effective December 16, 1993, which covered the offering (the "Public Offering") of the Fund's beneficial assignee certificates ("BACs") representing assignments of units of the beneficial interest of the limited partnership interest of the assignor limited partner. The Fund registered 30,000,000 BACs at $10 per BAC for sale to the public in one or more series. On April 18, 1996, an amendment to Form S-11 which registered an additional 10,000,000 BACs for sale to the public in one or more series became effective. On April 2, 1998, an amendment to Form S-11, which registered an additional 25,000,000 BACs for sale to the public in one or more series, became effective. On August 31, 1999, an amendment to Form S-11, which registered an additional 8,000,000 BACs for sale to the public in one or more series, became effective. On July 26, 2000, an amendment to Form S-11, which registered an additional 7,500,000 BACs for sale to the public in one or more series, became effective. On July 24, 2001, an amendment to Form S-11, which registered an additional 7,000,000 BACs for sale to the public in one or more series, became effective. On July 24, 2002, an amendment to Form S–11, which registered an additional 7,000,000 BACs for sale to the public, became effective. On July 1, 2003, an amendment to Form S–11, which registered an additional 7,000,000 BACs for sale to the public, became effective.

Below is a summary of the 
BACs sold and total equity raised, by series, as of the date of this filing:

Series	Closing Date	BACs Sold	Equity Raised
Series 20	June 24, 1994	3,866,700	$38,667,000
Series 21	December 31, 1994	1,892,700	$18,927,000
Series 22	December 28, 1994	2,564,400	$25,644,000
Series 23	June 23, 1995	3,336,727	$33,366,000
Series 24	September 22, 1995	2,169,878	$21,697,000
Series 25	December 29, 1995	3,026,109	$30,248,000
Series 26	June 25, 1996	3,995,900	$39,959,000
Series 27	September 17, 1996	2,460,700	$24,607,000
Series 28	January 29, 1997	4,000,738	$39,999,000

Series	Closing Date	BACs Sold	Equity Raised
Series 29	June 10, 1997	3,991,800	$39,918,000
Series 30	September 10, 1997	2,651,000	$26,490,750
Series 31	January 18, 1998	4,417,857	$44,057,750
Series 32	June 23, 1998	4,754,198	$47,431,000
Series 33	September 21, 1998	2,636,533	$26,362,000
Series 34	February 11, 1999	3,529,319	$35,273,000
Series 35	June 28, 1999	3,300,463	$33,004,630
Series 36	September 28, 1999	2,106,838	$21,068,375
Series 37	January 28, 2000	2,512,500	$25,125,000
Series 38	July 31, 2000	2,543,100	$25,431,000
Series 39	January 31, 2001	2,292,151	$22,921,000
Series 40	July 31, 2001	2,630,256	$26,269,256
Series 41	January 31, 2002	2,891,626	$28,916,260
Series 42	July 31, 2002	2,744,262	$27,442,620
Series 43	December 31, 2002	3,637,987	$36,379,870
Series 44	April 30, 2003	2,701,973	$27,019,730
Series 45	September 16, 2003	4,014,367	$40,143,670
Series 46	December 19, 2003	2,980,998	$29,809,980

The Fund concluded its public offering of 
BACs in the Fund on December 19, 2003.

XML 19 R8.htm IDEA: XBRL DOCUMENT

ACCOUNTING AND FINANCIAL REPORTING POLICIES

9 Months Ended

Dec. 31, 2018

Accounting Policies [Abstract]

Significant Accounting Policies [Text Block]

NOTE B - ACCOUNTING AND FINANCIAL REPORTING POLICIES

The condensed financial statements herein as of December 31, 2018 and for the three and nine months then ended have been prepared by the Fund, without audit, pursuant to the rules and regulations of the Securities and Exchange Commission. The Fund accounts for its investments in Operating Partnerships using the equity method, whereby the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. Costs incurred by the Fund in acquiring the investments in the Operating Partnerships are capitalized to the investment account.

The Fund's accounting and financial reporting policies are in conformity with generally accepted accounting principles and include adjustments in interim periods considered necessary for a fair presentation of the results of operations. Such adjustments are of a normal recurring nature. Certain information and footnote disclosures normally included in financial statements prepared in accordance with generally accepted accounting principles have been condensed or omitted pursuant to these rules and regulations. It is suggested that these condensed financial statements be read in conjunction with the financial statements and notes thereto included in the Fund's Annual Report on Form 10-K for the fiscal year ended March 31, 2018.
 

XML 20 R9.htm IDEA: XBRL DOCUMENT

RELATED PARTY TRANSACTIONS

9 Months Ended

Dec. 31, 2018

NOTE C - RELATED PARTY TRANSACTIONS

The Fund has entered into several transactions with various affiliates of the general partner of the Fund, including Boston Capital Holdings Limited Partnership, Boston Capital Securities, Inc., and Boston Capital Asset Management Limited Partnership as follows:

An annual fund management fee of .5 percent of the aggregate cost of all apartment complexes owned by the Operating Partnerships has been accrued to Boston Capital Asset Management Limited Partnership. Since reporting fees collected by the various series were added to reserves and not paid to Boston Capital Asset Management Limited Partnership, the amounts accrued are not net of reporting fees received. The fund management fees accrued for the quarters ended December 31, 2018 and 2017, are as follows:

	2018	2017
Series 20	$ 2,549	$ 5,536
Series 21	-	2,216
Series 22	6,426	7,303
Series 23	5,556	5,556
Series 24	10,761	12,588
Series 25	-	-
Series 26	13,938	15,609
Series 27	7,635	8,915
Series 28	7,296	8,844
Series 29	7,261	20,547
Series 30	5,668	12,609
Series 31	16,065	19,092
Series 32	19,794	23,234
Series 33	13,318	15,654
Series 34	12,365	12,365
Series 35	10,653	10,653
Series 36	5,172	7,626
Series 37	-	10,957
Series 38	16,581	18,234
Series 39	-	1,712
Series 40	23,390	26,594
Series 41	34,076	49,564
Series 42	23,847	40,788
Series 43	45,090	55,612
Series 44	57,826	57,825
Series 45	67,565	70,359
Series 46	52,299	52,299
	$ 465,131	$ 572,291

The fund management fees paid for the nine months ended December 31, 2018 and 2017 are as follows:

	2018	2017
Series 20	$ 378,835	$ -
Series 21	-	258,000
Series 22	202,998	-
Series 23	435,802	488,550
Series 24	32,283	37,764
Series 25	-	11,374
Series 26	43,485	60,699
Series 27	22,905	33,438
Series 28	23,436	26,532
Series 29	519,601	-
Series 30	523,527	-
Series 31	51,692	62,490
Series 32	787,880	1,184,057
Series 33	206,940	-
Series 34	150,000	430,691
Series 35	31,959	597,597
Series 36	18,788	790,383
Series 37	526,729	1,574,732
Series 38	69,630	1,570,687
Series 39	-	938,915
Series 40	225,000	93,700
Series 41	520,930	70,500
Series 42	80,686	126,528
Series 43	566,306	-
Series 45	242,500	-
Series 46	180,000	163,222
	$ 5,841,912	$ 8,519,859

XML 21 R10.htm IDEA: XBRL DOCUMENT

INVESTMENTS IN OPERATING PARTNERSHIPS

9 Months Ended

Dec. 31, 2018

Equity Method Investments and Joint Ventures [Abstract]

Equity Method Investments Disclosure [Text Block]

NOTE D - INVESTMENTS IN OPERATING PARTNERSHIPS

At December 31, 2018 and 2017, the Fund has limited partnership interests in 132 and 179 Operating Partnerships, respectively, which own or are constructing apartment complexes.

The breakdown of Operating Partnerships within the Fund at December 31, 2018 and 2017 are as follows:

	2018	2017
Series 20	-	2
Series 21	-	-
Series 22	-	3
Series 23	-	3
Series 24	4	6
Series 25	-	-
Series 26	8	9
Series 27	3	3
Series 28	4	5
Series 29	5	8
Series 30	-	6
Series 31	1	8
Series 32	5	6
Series 33	3	4
Series 34	4	4
Series 35	2	2
Series 36	2	3
Series 37	-	1
Series 38	3	4
Series 39	-	-
Series 40	8	9
Series 41	11	14
Series 42	9	13
Series 43	14	18
Series 44	7	7
Series 45	25	27
Series 46	14	14
	132	179

Under the terms of the Fund's investment in each Operating Partnership, the Fund is required to make capital contributions to the Operating Partnerships. These contributions are payable in installments over several years upon each Operating Partnership achieving specified levels of construction and/or operations. The contributions payable at December 31, 2018 and 2017, are as follows:

	2018	2017
Series 29	$ 785	$ 8,235
Series 30	-	65,176
Series 31	25,000	66,294
Series 32	1,229	1,229
Series 33	-	2,650
Series 40	102	102
Series 41	-	100
Series 42	254	254
Series 43	-	26,082
Series 45	16,724	16,724
	$ 44,094	$ 186,846

During the nine months ended December 31, 2018 the Fund disposed of thirty-seven Operating Partnerships. A summary of the dispositions by Series for December 31, 2018 is as follows:

	Operating Partnership Interest Transferred	Sale of Underlying Operating Partnership	Fund Proceeds from Disposition *		Gain on Disposition

Series 20	2	-	$	197,337	$	197,337
Series 22	3	-		38,000		38,000
Series 23	3	-		43,500		43,500
Series 24	1	-		23,678		23,678
Series 26	1	-		10,500		10,500
Series 28	1	-		8,500		8,500
Series 29	2	-		122,994		123,094
Series 30	5	-		130,006		195,182
Series 31	7	-		64,500		105,794
Series 32	-	1		487,880		487,880
Series 36	-	1		253,104		253,104
Series 37	-	1		1,062,375		1,062,375
Series 38	1	-		7,000		7,000
Series 40	1	-		44,500		44,500
Series 41	-	1		14,000		14,000
Series 42	2	-		54,322		54,322
Series 43	3	-		49,438		75,520
Series 45	1	-		342,500		342,500
Total	33	4	$	2,954,134	$	3,086,786

* Fund proceeds from disposition does not include $100, $65,176, $41,294 and $26,082, which was due to a writeoff of capital contribution payable as of December 31, 2018, for Series 29, Series 30, Series 31 and Series 43, respectively.

The gain described above is for financial statement purposes only. There are significant differences between the equity method of accounting and the tax reporting of income and losses from Operating Partnership investments. The largest difference is the ability, for tax purposes, to deduct losses in excess of the Fund’s investment in the Operating Partnership. As a result, the amount of gain recognized for tax purposes may be significantly higher than the gain recorded in the financial statements.

During the nine months ended December 31, 2017 the Fund disposed of thirty Operating Partnerships. A summary of the dispositions by Series for December 31, 2017 is as follows:

	Operating Partnership Interest Transferred	Sale of Underlying Operating Partnership	Fund Proceeds from Disposition *		Gain on Disposition

Series 20	1	-	$	42,000	$	42,000
Series 21	2	-		67,000		67,000
Series 23	-	1		989,962		989,962
Series 25	4	-		97,399		97,399
Series 26	4	-		80,000		80,000
Series 27	1	1		3,291,567		3,291,567
Series 30	1	1		226,021		265,984
Series 31	2	-		45,000		45,000
Series 32	-	1		1,677,252		1,677,252
Series 33	1	-		950		67,454
Series 35	1	-		2,653,528		2,653,528
Series 37	1	-		1,977		140,415
Series 39	1	-		17,779		17,779
Series 40	1	-		588,952		588,952
Series 41	3	-		782,887		782,887
Series 42	2	-		262,279		262,279
Series 43	1	-		225,500		225,500
Series 46	-	-		10,994		10,994
Total	26	4	$	11,061,047	$	11,305,952

* Fund proceeds from disposition does not include $39,963, $66,504 and $138,438 which was due to a writeoff of capital contribution payable as of December 31, 2017, for Series 30, Series 33 and Series 37, respectively.

The gain described above is for financial statement purposes only. There are significant differences between the equity method of accounting and the tax reporting of income and losses from Operating Partnership investments. The largest difference is the ability, for tax purposes, to deduct losses in excess of the Fund’s investment in the Operating Partnership. As a result, the amount of gain recognized for tax purposes may be significantly higher than the gain recorded in the financial statements.

The Fund's fiscal year ends March 31st for each year, while all the Operating Partnerships' fiscal years are the calendar year. Pursuant to the provisions of each Operating Partnership Agreement, financial results for each of the Operating Partnerships are provided to the Fund within 45 days after the close of each Operating Partnership's quarterly period. Accordingly, the current financial results available for the Operating Partnerships are for the nine months ended September 30, 2018.

		2018	2017

Revenues
	Rental	$ 30,464,104	$ 39,192,976
	Interest and other	867,967	1,235,063
		31,332,071	40,428,039

Expenses
	Interest	5,133,584	6,754,119
	Depreciation and amortization	7,690,864	10,698,194
	Operating expenses	21,606,132	28,924,546
		34,430,580	46,376,859

NET LOSS		$ (3,098,509)	$ (5,948,820)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ (3,067,524)	$ (5,889,331)

Net loss allocated to other Partners		$ (30,985)	$ (59,489)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 20

		2018	2017
Revenues
	Rental	$ -	$ 352,045
	Interest and other	-	24,048
		-	376,093

Expenses
	Interest	-	32,617
	Depreciation and amortization	-	91,765
	Operating expenses	-	315,661
		-	440,043

NET LOSS		$ -	$ (63,950)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ -	$ (63,310)

Net loss allocated to other Partners		$ -	$ (640)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 21

		2018	2017
Revenues
	Rental	$ -	$ -
	Interest and other	-	-
		-	-

Expenses
	Interest	-	-
	Depreciation and amortization	-	-
	Operating expenses	-	-
		-	-

NET LOSS		$ -	$ -

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ -	$ -

Net loss allocated to other Partners		$ -	$ -

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 22

		2018	2017
Revenues
	Rental	$ -	$ 382,584
	Interest and other	-	13,663
		-	396,247

Expenses
	Interest	-	34,025
	Depreciation and amortization	-	103,504
	Operating expenses	-	311,606
		-	449,135

NET LOSS		$ -	$ (52,888)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ -	$ (52,359)

Net loss allocated to other Partners		$ -	$ (529)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 23

		2018	2017
Revenues
	Rental	$ -	$ 316,873
	Interest and other	-	15,894
		-	332,767

Expenses
	Interest	-	18,061
	Depreciation and amortization	-	67,348
	Operating expenses	-	263,411
		-	348,820

NET LOSS		$ -	$ (16,053)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ -	$ (15,892)

Net loss allocated to other Partners		$ -	$ (161)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 24

		2018	2017
Revenues
	Rental	$ 633,339	$ 768,883
	Interest and other	20,560	15,362
		653,899	784,245

Expenses
	Interest	51,588	67,689
	Depreciation and amortization	178,656	211,044
	Operating expenses	509,233	620,298
		739,477	899,031

NET LOSS		$ (85,578)	$ (114,786)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ (84,722)	$ (113,638)

Net loss allocated to other Partners		$ (856)	$ (1,148)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 25

		2018	2017
Revenues
	Rental	$ -	$ -
	Interest and other	-	-
		-	-

Expenses
	Interest	-	-
	Depreciation and amortization	-	-
	Operating expenses	-	-
		-	-

NET LOSS		$ -	$ -

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ -	$ -

Net loss allocated to other Partners		$ -	$ -

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 26

		2018	2017
Revenues
	Rental	$ 956,030	$ 1,258,324
	Interest and other	11,483	22,706
		967,513	1,281,030

Expenses
	Interest	167,510	208,522
	Depreciation and amortization	233,109	321,930
	Operating expenses	805,239	1,099,558
		1,205,858	1,630,010

NET LOSS		$ (238,345)	$ (348,980)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ (235,962)	$ (345,490)

Net loss allocated to other Partners		$ (2,383)	$ (3,490)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 27

		2018	2017
Revenues
	Rental	$ 495,454	$ 563,566
	Interest and other	9,742	7,923
		505,196	571,489

Expenses
	Interest	24,930	32,644
	Depreciation and amortization	133,387	165,370
	Operating expenses	413,037	457,051
		571,354	655,065

NET LOSS		$ (66,158)	$ (83,576)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ (65,496)	$ (82,740)

Net loss allocated to other Partners		$ (662)	$ (836)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 28

		2018	2017
Revenues
	Rental	$ 616,769	$ 751,710
	Interest and other	33,854	18,953
		650,623	770,663

Expenses
	Interest	99,851	122,273
	Depreciation and amortization	137,643	169,333
	Operating expenses	511,313	587,874
		748,807	879,480

NET LOSS		$ (98,184)	$ (108,817)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ (97,202)	$ (107,729)

Net loss allocated to other Partners		$ (982)	$ (1,088)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 29

		2018	2017
Revenues
	Rental	$ 784,882	$ 1,311,305
	Interest and other	30,243	126,151
		815,125	1,437,456

Expenses
	Interest	148,877	295,053
	Depreciation and amortization	162,256	371,636
	Operating expenses	665,615	1,166,408
		976,748	1,833,097

NET LOSS		$ (161,623)	$ (395,641)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ (160,007)	$ (391,685)

Net loss allocated to other Partners		$ (1,616)	$ (3,956)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 30

		2018	2017
Revenues
	Rental	$ -	$ 772,562
	Interest and other	-	18,959
		-	791,521

Expenses
	Interest	-	70,220
	Depreciation and amortization	-	217,874
	Operating expenses	-	606,608
		-	894,702

NET LOSS		$ -	$ (103,181)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ -	$ (102,149)

Net loss allocated to other Partners		$ -	$ (1,032)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 31

		2018	2017
Revenues
	Rental	$ 376,723	$ 1,132,079
	Interest and other	10,701	33,083
		387,424	1,165,162

Expenses
	Interest	20,306	107,647
	Depreciation and amortization	104,349	385,046
	Operating expenses	310,598	1,013,004
		435,253	1,505,697

NET LOSS		$ (47,829)	$ (340,535)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ (47,351)	$ (337,130)

Net loss allocated to other Partners		$ (478)	$ (3,405)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 32

		2018	2017
Revenues
	Rental	$ 1,155,742	$ 1,475,541
	Interest and other	17,208	35,824
		1,172,950	1,511,365

Expenses
	Interest	192,666	240,025
	Depreciation and amortization	328,747	455,816
	Operating expenses	961,941	1,192,506
		1,483,354	1,888,347

NET LOSS		$ (310,404)	$ (376,982)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ (307,300)	$ (373,212)

Net loss allocated to other Partners		$ (3,104)	$ (3,770)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 33

		2018	2017
Revenues
	Rental	$ 949,402	$ 1,040,194
	Interest and other	34,529	36,781
		983,931	1,076,975

Expenses
	Interest	152,512	179,339
	Depreciation and amortization	209,302	260,563
	Operating expenses	698,505	784,939
		1,060,319	1,224,841

NET LOSS		$ (76,388)	$ (147,866)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ (75,624)	$ (146,387)

Net loss allocated to other Partners		$ (764)	$ (1,479)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 34

		2018	2017
Revenues
	Rental	$ 742,517	$ 728,809
	Interest and other	37,801	26,259
		780,318	755,068

Expenses
	Interest	86,873	78,197
	Depreciation and amortization	205,643	206,720
	Operating expenses	556,471	565,852
		848,987	850,769

NET LOSS		$ (68,669)	$ (95,701)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ (67,982)	$ (94,744)

Net loss allocated to other Partners		$ (687)	$ (957)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 35

		2018	2017
Revenues
	Rental	$ 757,401	$ 829,380
	Interest and other	42,456	22,600
		799,857	851,980

Expenses
	Interest	124,866	138,051
	Depreciation and amortization	241,734	254,427
	Operating expenses	455,666	482,739
		822,266	875,217

NET LOSS		$ (22,409)	$ (23,237)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ (22,185)	$ (23,005)

Net loss allocated to other Partners		$ (224)	$ (232)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 36

		2018	2017
Revenues
	Rental	$ 358,462	$ 483,137
	Interest and other	876	13,767
		359,338	496,904

Expenses
	Interest	67,983	96,625
	Depreciation and amortization	83,885	126,835
	Operating expenses	263,534	372,348
		415,402	595,808

NET LOSS		$ (56,064)	$ (98,904)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ (55,503)	$ (97,915)

Net loss allocated to other Partners		$ (561)	$ (989)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 37

		2018	2017
Revenues
	Rental	$ -	$ 588,136
	Interest and other	-	58,474
		-	646,610

Expenses
	Interest	-	96,219
	Depreciation and amortization	-	197,321
	Operating expenses	-	441,915
		-	735,455

NET LOSS		$ -	$ (88,845)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ -	$ (87,957)

Net loss allocated to other Partners		$ -	$ (888)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 38

		2018	2017
Revenues
	Rental	$ 1,216,088	$ 1,331,140
	Interest and other	24,560	16,255
		1,240,648	1,347,395

Expenses
	Interest	166,859	185,342
	Depreciation and amortization	233,270	279,470
	Operating expenses	847,211	960,761
		1,247,340	1,425,573

NET LOSS		$ (6,692)	$ (78,178)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ (6,625)	$ (77,396)

Net loss allocated to other Partners		$ (67)	$ (782)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 39

		2018	2017
Revenues
	Rental	$ -	$ -
	Interest and other	-	-
		-	-

Expenses
	Interest	-	-
	Depreciation and amortization	-	-
	Operating expenses	-	-
		-	-

NET LOSS		$ -	$ -

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ -	$ -

Net loss allocated to other Partners		$ -	$ -

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 40

		2018	2017
Revenues
	Rental	$ 1,443,245	$ 1,677,092
	Interest and other	36,591	37,872
		1,479,836	1,714,964

Expenses
	Interest	267,896	342,476
	Depreciation and amortization	378,996	493,185
	Operating expenses	1,100,318	1,380,725
		1,747,210	2,216,386

NET LOSS		$ (267,374)	$ (501,422)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ (264,700)	$ (496,408)

Net loss allocated to other Partners		$ (2,674)	$ (5,014)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 41

		2018	2017
Revenues
	Rental	$ 2,723,324	$ 3,731,606
	Interest and other	44,492	78,700
		2,767,816	3,810,306

Expenses
	Interest	510,040	774,931
	Depreciation and amortization	577,130	893,311
	Operating expenses	1,835,494	2,606,559
		2,922,664	4,274,801

NET LOSS		$ (154,848)	$ (464,495)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ (153,300)	$ (459,850)

Net loss allocated to other Partners		$ (1,548)	$ (4,645)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 42

		2018	2017
Revenues
	Rental	$ 1,660,288	$ 2,581,674
	Interest and other	68,234	103,563
		1,728,522	2,685,237

Expenses
	Interest	337,485	560,478
	Depreciation and amortization	501,382	801,778
	Operating expenses	1,204,267	1,918,744
		2,043,134	3,281,000

NET LOSS		$ (314,612)	$ (595,763)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ (311,466)	$ (589,805)

Net loss allocated to other Partners		$ (3,146)	$ (5,958)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 43

		2018	2017
Revenues
	Rental	$ 2,592,340	$ 3,823,594
	Interest and other	110,695	186,172
		2,703,035	4,009,766

Expenses
	Interest	308,956	586,218
	Depreciation and amortization	788,153	1,263,725
	Operating expenses	1,974,029	2,952,130
		3,071,138	4,802,073

NET LOSS		$ (368,103)	$ (792,307)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ (364,422)	$ (784,384)

Net loss allocated to other Partners		$ (3,681)	$ (7,923)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 44

		2018	2017
Revenues
	Rental	$ 4,471,520	$ 4,397,610
	Interest and other	122,781	136,412
		4,594,301	4,534,022

Expenses
	Interest	1,043,365	1,051,820
	Depreciation and amortization	1,014,262	1,025,862
	Operating expenses	2,566,624	2,635,539
		4,624,251	4,713,221

NET LOSS		$ (29,950)	$ (179,199)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ (29,651)	$ (177,407)

Net loss allocated to other Partners		$ (299)	$ (1,792)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 45

		2018	2017
Revenues
	Rental	$ 4,990,180	$ 5,430,265
	Interest and other	103,760	110,355
		5,093,940	5,540,620

Expenses
	Interest	656,160	727,734
	Depreciation and amortization	1,328,457	1,476,660
	Operating expenses	3,702,951	3,931,531
		5,687,568	6,135,925

NET LOSS		$ (593,628)	$ (595,305)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ (587,692)	$ (589,352)

Net loss allocated to other Partners		$ (5,936)	$ (5,953)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 46

		2018	2017
Revenues
	Rental	$ 3,540,398	$ 3,464,867
	Interest and other	107,401	75,287
		3,647,799	3,540,154

Expenses
	Interest	704,861	707,913
	Depreciation and amortization	850,503	857,671
	Operating expenses	2,224,086	2,256,779
		3,779,450	3,822,363

NET LOSS		$ (131,651)	$ (282,209)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ (130,334)	$ (279,387)

Net loss allocated to other Partners		$ (1,317)	$ (2,822)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

XML 22 R11.htm IDEA: XBRL DOCUMENT

TAXABLE LOSS

9 Months Ended

Dec. 31, 2018

Taxable Loss [Abstract]

Taxable Loss [Text Block]

NOTE E - TAXABLE LOSS

The Fund's taxable loss is expected to differ from its loss for financial reporting purposes. This is primarily due to accounting differences in depreciation incurred by the Operating Partnerships and also differences between the equity method of accounting and the IRS accounting methods. 

XML 23 R12.htm IDEA: XBRL DOCUMENT

INCOME TAXES

9 Months Ended

Dec. 31, 2018

Income Tax Disclosure [Abstract]

Income Tax Relating To Partnership Disclosure [Text Block]

NOTE F - INCOME TAXES

The Fund has elected to be treated as a pass-through entity for income tax purposes and, as such, is not subject to income taxes. Rather, all items of taxable income, deductions and tax credits are passed through to and are reported by its owners on their respective income tax returns. The Fund’s federal tax status as a pass-through entity is based on its legal status as a partnership. Accordingly, the Fund is not required to take any tax positions in order to qualify as a pass-through entity. The Fund is required to file and does file tax returns with the Internal Revenue Service and other taxing authorities. Accordingly, these financial statements do not reflect a provision for income taxes and the Fund has no other tax positions, which must be considered for disclosure. Income tax returns filed by the Fund are subject to examination by the Internal Revenue Service for a period of three years. While no income tax returns are currently being examined by the Internal Revenue Service, tax years since 2014 remain open.

XML 24 R13.htm IDEA: XBRL DOCUMENT

SUBSEQUENT EVENTS

9 Months Ended

Dec. 31, 2018

Subsequent Events [Abstract]

Subsequent Events [Text Block]

NOTE G - SUBSEQUENT EVENTS

Subsequent to December 31, 2018, the Fund has entered into an agreement to transfer the interest in five operating limited partnerships. The estimated transfer price and other terms for the dispositions of the operating limited partnerships have been determined. The estimated proceeds to be received for the operating limited partnerships are $689,744. The estimated gain on the transfer of the operating limited partnerships are $661,244 
and are expected to be recognized in the fourth quarter of fiscal year ending March 31, 2019.

XML 25 R14.htm IDEA: XBRL DOCUMENT

ORGANIZATION (Tables)

9 Months Ended

Dec. 31, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Limited Partners' Capital Account by Class [Table Text Block]

Below is a summary of the 
BACs sold and total equity raised, by series, as of the date of this filing:

Series	Closing Date	BACs Sold	Equity Raised
Series 20	June 24, 1994	3,866,700	$38,667,000
Series 21	December 31, 1994	1,892,700	$18,927,000
Series 22	December 28, 1994	2,564,400	$25,644,000
Series 23	June 23, 1995	3,336,727	$33,366,000
Series 24	September 22, 1995	2,169,878	$21,697,000
Series 25	December 29, 1995	3,026,109	$30,248,000
Series 26	June 25, 1996	3,995,900	$39,959,000
Series 27	September 17, 1996	2,460,700	$24,607,000
Series 28	January 29, 1997	4,000,738	$39,999,000

Series	Closing Date	BACs Sold	Equity Raised
Series 29	June 10, 1997	3,991,800	$39,918,000
Series 30	September 10, 1997	2,651,000	$26,490,750
Series 31	January 18, 1998	4,417,857	$44,057,750
Series 32	June 23, 1998	4,754,198	$47,431,000
Series 33	September 21, 1998	2,636,533	$26,362,000
Series 34	February 11, 1999	3,529,319	$35,273,000
Series 35	June 28, 1999	3,300,463	$33,004,630
Series 36	September 28, 1999	2,106,838	$21,068,375
Series 37	January 28, 2000	2,512,500	$25,125,000
Series 38	July 31, 2000	2,543,100	$25,431,000
Series 39	January 31, 2001	2,292,151	$22,921,000
Series 40	July 31, 2001	2,630,256	$26,269,256
Series 41	January 31, 2002	2,891,626	$28,916,260
Series 42	July 31, 2002	2,744,262	$27,442,620
Series 43	December 31, 2002	3,637,987	$36,379,870
Series 44	April 30, 2003	2,701,973	$27,019,730
Series 45	September 16, 2003	4,014,367	$40,143,670
Series 46	December 19, 2003	2,980,998	$29,809,980

XML 26 R15.htm IDEA: XBRL DOCUMENT

RELATED PARTY TRANSACTIONS (Tables)

9 Months Ended

Dec. 31, 2018

Schedule Of Gross Management Fee [Table Text Block]

The fund management fees accrued for the quarters ended December 31, 2018 and 2017, are as follows:

	2018	2017
Series 20	$ 2,549	$ 5,536
Series 21	-	2,216
Series 22	6,426	7,303
Series 23	5,556	5,556
Series 24	10,761	12,588
Series 25	-	-
Series 26	13,938	15,609
Series 27	7,635	8,915
Series 28	7,296	8,844
Series 29	7,261	20,547
Series 30	5,668	12,609
Series 31	16,065	19,092
Series 32	19,794	23,234
Series 33	13,318	15,654
Series 34	12,365	12,365
Series 35	10,653	10,653
Series 36	5,172	7,626
Series 37	-	10,957
Series 38	16,581	18,234
Series 39	-	1,712
Series 40	23,390	26,594
Series 41	34,076	49,564
Series 42	23,847	40,788
Series 43	45,090	55,612
Series 44	57,826	57,825
Series 45	67,565	70,359
Series 46	52,299	52,299
	$ 465,131	$ 572,291

Schedule Of Management Fees Paid [Table Text Block]

The fund management fees paid for the nine months ended December 31, 2018 and 2017 are as follows:

	2018	2017
Series 20	$ 378,835	$ -
Series 21	-	258,000
Series 22	202,998	-
Series 23	435,802	488,550
Series 24	32,283	37,764
Series 25	-	11,374
Series 26	43,485	60,699
Series 27	22,905	33,438
Series 28	23,436	26,532
Series 29	519,601	-
Series 30	523,527	-
Series 31	51,692	62,490
Series 32	787,880	1,184,057
Series 33	206,940	-
Series 34	150,000	430,691
Series 35	31,959	597,597
Series 36	18,788	790,383
Series 37	526,729	1,574,732
Series 38	69,630	1,570,687
Series 39	-	938,915
Series 40	225,000	93,700
Series 41	520,930	70,500
Series 42	80,686	126,528
Series 43	566,306	-
Series 45	242,500	-
Series 46	180,000	163,222
	$5,841,912	$8,519,859

XML 27 R16.htm IDEA: XBRL DOCUMENT

INVESTMENTS IN OPERATING PARTNERSHIPS (Tables)

9 Months Ended

Dec. 31, 2018

Equity Method Investments and Joint Ventures [Abstract]

Schedule Of Number Of Operating Partnerships [Table Text Block]

The breakdown of Operating Partnerships within the Fund at December 31, 2018 and 2017 are as follows:

	2018	2017
Series 20	-	2
Series 21	-	-
Series 22	-	3
Series 23	-	3
Series 24	4	6
Series 25	-	-
Series 26	8	9
Series 27	3	3
Series 28	4	5
Series 29	5	8
Series 30	-	6
Series 31	1	8
Series 32	5	6
Series 33	3	4
Series 34	4	4
Series 35	2	2
Series 36	2	3
Series 37	-	1
Series 38	3	4
Series 39	-	-
Series 40	8	9
Series 41	11	14
Series 42	9	13
Series 43	14	18
Series 44	7	7
Series 45	25	27
Series 46	14	14
	132	179

Schedule Of Contributions Payable [Table Text Block]

The contributions payable at December 31, 2018 and 2017, are as follows:

	2018	2017
Series 29	$ 785	$ 8,235
Series 30	-	65,176
Series 31	25,000	66,294
Series 32	1,229	1,229
Series 33	-	2,650
Series 40	102	102
Series 41	-	100
Series 42	254	254
Series 43	-	26,082
Series 45	16,724	16,724
	$ 44,094	$ 186,846

Schedule Of Dispositions By Series [Table Text Block]

During the nine months ended December 31, 2018 the Fund disposed of thirty-seven Operating Partnerships. A summary of the dispositions by Series for December 31, 2018 is as follows:

	Operating Partnership Interest Transferred	Sale of Underlying Operating Partnership	Fund Proceeds from Disposition *		Gain on Disposition

Series 20	2	-	$	197,337	$	197,337
Series 22	3	-		38,000		38,000
Series 23	3	-		43,500		43,500
Series 24	1	-		23,678		23,678
Series 26	1	-		10,500		10,500
Series 28	1	-		8,500		8,500
Series 29	2	-		122,994		123,094
Series 30	5	-		130,006		195,182
Series 31	7	-		64,500		105,794
Series 32	-	1		487,880		487,880
Series 36	-	1		253,104		253,104
Series 37	-	1		1,062,375		1,062,375
Series 38	1	-		7,000		7,000
Series 40	1	-		44,500		44,500
Series 41	-	1		14,000		14,000
Series 42	2	-		54,322		54,322
Series 43	3	-		49,438		75,520
Series 45	1	-		342,500		342,500
Total	33	4	$	2,954,134	$	3,086,786

* Fund proceeds from disposition does not include $100, $65,176, $41,294 and $26,082, which was due to a writeoff of capital contribution payable as of December 31, 2018, for Series 29, Series 30, Series 31 and Series 43, respectively.

The gain described above is for financial statement purposes only. There are significant differences between the equity method of accounting and the tax reporting of income and losses from Operating Partnership investments. The largest difference is the ability, for tax purposes, to deduct losses in excess of the Fund’s investment in the Operating Partnership. As a result, the amount of gain recognized for tax purposes may be significantly higher than the gain recorded in the financial statements.

During the nine months ended December 31, 2017 the Fund disposed of thirty Operating Partnerships. A summary of the dispositions by Series for December 31, 2017 is as follows:

	Operating Partnership Interest Transferred	Sale of Underlying Operating Partnership	Fund Proceeds from Disposition *		Gain on Disposition

Series 20	1	-	$	42,000	$	42,000
Series 21	2	-		67,000		67,000
Series 23	-	1		989,962		989,962
Series 25	4	-		97,399		97,399
Series 26	4	-		80,000		80,000
Series 27	1	1		3,291,567		3,291,567
Series 30	1	1		226,021		265,984
Series 31	2	-		45,000		45,000
Series 32	-	1		1,677,252		1,677,252
Series 33	1	-		950		67,454
Series 35	1	-		2,653,528		2,653,528
Series 37	1	-		1,977		140,415
Series 39	1	-		17,779		17,779
Series 40	1	-		588,952		588,952
Series 41	3	-		782,887		782,887
Series 42	2	-		262,279		262,279
Series 43	1	-		225,500		225,500
Series 46	-	-		10,994		10,994
Total	26	4	$	11,061,047	$	11,305,952

* Fund proceeds from disposition does not include $39,963, $66,504 and $138,438 which was due to a writeoff of capital contribution payable as of December 31, 2017, for Series 30, Series 33 and Series 37, respectively.

Schedule Of Summarized Statement Of Operations In Operating Partnerships [Table Text Block]

Accordingly, the current financial results available for the Operating Partnerships are for the nine months ended September 30, 2018.

COMBINED CONDENSED SUMMARIZED STATEMENTS OF OPERATIONS

Nine Months Ended September 30,

(Unaudited)

		2018	2017

Revenues
	Rental	$ 30,464,104	$ 39,192,976
	Interest and other	867,967	1,235,063
		31,332,071	40,428,039

Expenses
	Interest	5,133,584	6,754,119
	Depreciation and amortization	7,690,864	10,698,194
	Operating expenses	21,606,132	28,924,546
		34,430,580	46,376,859

NET LOSS		$ (3,098,509)	$ (5,948,820)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ (3,067,524)	$ (5,889,331)

Net loss allocated to other Partners		$ (30,985)	$ (59,489)

Series 20

		2018	2017
Revenues
	Rental	$ -	$ 352,045
	Interest and other	-	24,048
		-	376,093

Expenses
	Interest	-	32,617
	Depreciation and amortization	-	91,765
	Operating expenses	-	315,661
		-	440,043

NET LOSS		$ -	$ (63,950)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ -	$ (63,310)

Net loss allocated to other Partners		$ -	$ (640)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 21

		2018	2017
Revenues
	Rental	$ -	$ -
	Interest and other	-	-
		-	-

Expenses
	Interest	-	-
	Depreciation and amortization	-	-
	Operating expenses	-	-
		-	-

NET LOSS		$ -	$ -

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ -	$ -

Net loss allocated to other Partners		$ -	$ -

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 22

		2018	2017
Revenues
	Rental	$ -	$ 382,584
	Interest and other	-	13,663
		-	396,247

Expenses
	Interest	-	34,025
	Depreciation and amortization	-	103,504
	Operating expenses	-	311,606
		-	449,135

NET LOSS		$ -	$ (52,888)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ -	$ (52,359)

Net loss allocated to other Partners		$ -	$ (529)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 23

		2018	2017
Revenues
	Rental	$ -	$ 316,873
	Interest and other	-	15,894
		-	332,767

Expenses
	Interest	-	18,061
	Depreciation and amortization	-	67,348
	Operating expenses	-	263,411
		-	348,820

NET LOSS		$ -	$ (16,053)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ -	$ (15,892)

Net loss allocated to other Partners		$ -	$ (161)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 24

		2018	2017
Revenues
	Rental	$ 633,339	$ 768,883
	Interest and other	20,560	15,362
		653,899	784,245

Expenses
	Interest	51,588	67,689
	Depreciation and amortization	178,656	211,044
	Operating expenses	509,233	620,298
		739,477	899,031

NET LOSS		$ (85,578)	$ (114,786)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ (84,722)	$ (113,638)

Net loss allocated to other Partners		$ (856)	$ (1,148)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 25

		2018	2017
Revenues
	Rental	$ -	$ -
	Interest and other	-	-
		-	-

Expenses
	Interest	-	-
	Depreciation and amortization	-	-
	Operating expenses	-	-
		-	-

NET LOSS		$ -	$ -

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ -	$ -

Net loss allocated to other Partners		$ -	$ -

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 26

		2018	2017
Revenues
	Rental	$ 956,030	$ 1,258,324
	Interest and other	11,483	22,706
		967,513	1,281,030

Expenses
	Interest	167,510	208,522
	Depreciation and amortization	233,109	321,930
	Operating expenses	805,239	1,099,558
		1,205,858	1,630,010

NET LOSS		$ (238,345)	$ (348,980)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ (235,962)	$ (345,490)

Net loss allocated to other Partners		$ (2,383)	$ (3,490)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 27

		2018	2017
Revenues
	Rental	$ 495,454	$ 563,566
	Interest and other	9,742	7,923
		505,196	571,489

Expenses
	Interest	24,930	32,644
	Depreciation and amortization	133,387	165,370
	Operating expenses	413,037	457,051
		571,354	655,065

NET LOSS		$ (66,158)	$ (83,576)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ (65,496)	$ (82,740)

Net loss allocated to other Partners		$ (662)	$ (836)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 28

		2018	2017
Revenues
	Rental	$ 616,769	$ 751,710
	Interest and other	33,854	18,953
		650,623	770,663

Expenses
	Interest	99,851	122,273
	Depreciation and amortization	137,643	169,333
	Operating expenses	511,313	587,874
		748,807	879,480

NET LOSS		$ (98,184)	$ (108,817)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ (97,202)	$ (107,729)

Net loss allocated to other Partners		$ (982)	$ (1,088)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 29

		2018	2017
Revenues
	Rental	$ 784,882	$ 1,311,305
	Interest and other	30,243	126,151
		815,125	1,437,456

Expenses
	Interest	148,877	295,053
	Depreciation and amortization	162,256	371,636
	Operating expenses	665,615	1,166,408
		976,748	1,833,097

NET LOSS		$ (161,623)	$ (395,641)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ (160,007)	$ (391,685)

Net loss allocated to other Partners		$ (1,616)	$ (3,956)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 30

		2018	2017
Revenues
	Rental	$ -	$ 772,562
	Interest and other	-	18,959
		-	791,521

Expenses
	Interest	-	70,220
	Depreciation and amortization	-	217,874
	Operating expenses	-	606,608
		-	894,702

NET LOSS		$ -	$ (103,181)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ -	$ (102,149)

Net loss allocated to other Partners		$ -	$ (1,032)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 31

		2018	2017
Revenues
	Rental	$ 376,723	$ 1,132,079
	Interest and other	10,701	33,083
		387,424	1,165,162

Expenses
	Interest	20,306	107,647
	Depreciation and amortization	104,349	385,046
	Operating expenses	310,598	1,013,004
		435,253	1,505,697

NET LOSS		$ (47,829)	$ (340,535)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ (47,351)	$ (337,130)

Net loss allocated to other Partners		$ (478)	$ (3,405)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 32

		2018	2017
Revenues
	Rental	$ 1,155,742	$ 1,475,541
	Interest and other	17,208	35,824
		1,172,950	1,511,365

Expenses
	Interest	192,666	240,025
	Depreciation and amortization	328,747	455,816
	Operating expenses	961,941	1,192,506
		1,483,354	1,888,347

NET LOSS		$ (310,404)	$ (376,982)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ (307,300)	$ (373,212)

Net loss allocated to other Partners		$ (3,104)	$ (3,770)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 33

		2018	2017
Revenues
	Rental	$ 949,402	$ 1,040,194
	Interest and other	34,529	36,781
		983,931	1,076,975

Expenses
	Interest	152,512	179,339
	Depreciation and amortization	209,302	260,563
	Operating expenses	698,505	784,939
		1,060,319	1,224,841

NET LOSS		$ (76,388)	$ (147,866)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ (75,624)	$ (146,387)

Net loss allocated to other Partners		$ (764)	$ (1,479)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 34

		2018	2017
Revenues
	Rental	$ 742,517	$ 728,809
	Interest and other	37,801	26,259
		780,318	755,068

Expenses
	Interest	86,873	78,197
	Depreciation and amortization	205,643	206,720
	Operating expenses	556,471	565,852
		848,987	850,769

NET LOSS		$ (68,669)	$ (95,701)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ (67,982)	$ (94,744)

Net loss allocated to other Partners		$ (687)	$ (957)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 35

		2018	2017
Revenues
	Rental	$ 757,401	$ 829,380
	Interest and other	42,456	22,600
		799,857	851,980

Expenses
	Interest	124,866	138,051
	Depreciation and amortization	241,734	254,427
	Operating expenses	455,666	482,739
		822,266	875,217

NET LOSS		$ (22,409)	$ (23,237)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ (22,185)	$ (23,005)

Net loss allocated to other Partners		$ (224)	$ (232)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 36

		2018	2017
Revenues
	Rental	$ 358,462	$ 483,137
	Interest and other	876	13,767
		359,338	496,904

Expenses
	Interest	67,983	96,625
	Depreciation and amortization	83,885	126,835
	Operating expenses	263,534	372,348
		415,402	595,808

NET LOSS		$ (56,064)	$ (98,904)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ (55,503)	$ (97,915)

Net loss allocated to other Partners		$ (561)	$ (989)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 37

		2018	2017
Revenues
	Rental	$ -	$ 588,136
	Interest and other	-	58,474
		-	646,610

Expenses
	Interest	-	96,219
	Depreciation and amortization	-	197,321
	Operating expenses	-	441,915
		-	735,455

NET LOSS		$ -	$ (88,845)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ -	$ (87,957)

Net loss allocated to other Partners		$ -	$ (888)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 38

		2018	2017
Revenues
	Rental	$ 1,216,088	$ 1,331,140
	Interest and other	24,560	16,255
		1,240,648	1,347,395

Expenses
	Interest	166,859	185,342
	Depreciation and amortization	233,270	279,470
	Operating expenses	847,211	960,761
		1,247,340	1,425,573

NET LOSS		$ (6,692)	$ (78,178)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ (6,625)	$ (77,396)

Net loss allocated to other Partners		$ (67)	$ (782)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 39

		2018	2017
Revenues
	Rental	$ -	$ -
	Interest and other	-	-
		-	-

Expenses
	Interest	-	-
	Depreciation and amortization	-	-
	Operating expenses	-	-
		-	-

NET LOSS		$ -	$ -

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ -	$ -

Net loss allocated to other Partners		$ -	$ -

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 40

		2018	2017
Revenues
	Rental	$ 1,443,245	$ 1,677,092
	Interest and other	36,591	37,872
		1,479,836	1,714,964

Expenses
	Interest	267,896	342,476
	Depreciation and amortization	378,996	493,185
	Operating expenses	1,100,318	1,380,725
		1,747,210	2,216,386

NET LOSS		$ (267,374)	$ (501,422)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ (264,700)	$ (496,408)

Net loss allocated to other Partners		$ (2,674)	$ (5,014)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 41

		2018	2017
Revenues
	Rental	$ 2,723,324	$ 3,731,606
	Interest and other	44,492	78,700
		2,767,816	3,810,306

Expenses
	Interest	510,040	774,931
	Depreciation and amortization	577,130	893,311
	Operating expenses	1,835,494	2,606,559
		2,922,664	4,274,801

NET LOSS		$ (154,848)	$ (464,495)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ (153,300)	$ (459,850)

Net loss allocated to other Partners		$ (1,548)	$ (4,645)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 42

		2018	2017
Revenues
	Rental	$ 1,660,288	$ 2,581,674
	Interest and other	68,234	103,563
		1,728,522	2,685,237

Expenses
	Interest	337,485	560,478
	Depreciation and amortization	501,382	801,778
	Operating expenses	1,204,267	1,918,744
		2,043,134	3,281,000

NET LOSS		$ (314,612)	$ (595,763)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ (311,466)	$ (589,805)

Net loss allocated to other Partners		$ (3,146)	$ (5,958)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 43

		2018	2017
Revenues
	Rental	$ 2,592,340	$ 3,823,594
	Interest and other	110,695	186,172
		2,703,035	4,009,766

Expenses
	Interest	308,956	586,218
	Depreciation and amortization	788,153	1,263,725
	Operating expenses	1,974,029	2,952,130
		3,071,138	4,802,073

NET LOSS		$ (368,103)	$ (792,307)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ (364,422)	$ (784,384)

Net loss allocated to other Partners		$ (3,681)	$ (7,923)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 44

		2018	2017
Revenues
	Rental	$ 4,471,520	$ 4,397,610
	Interest and other	122,781	136,412
		4,594,301	4,534,022

Expenses
	Interest	1,043,365	1,051,820
	Depreciation and amortization	1,014,262	1,025,862
	Operating expenses	2,566,624	2,635,539
		4,624,251	4,713,221

NET LOSS		$ (29,950)	$ (179,199)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ (29,651)	$ (177,407)

Net loss allocated to other Partners		$ (299)	$ (1,792)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 45

		2018	2017
Revenues
	Rental	$ 4,990,180	$ 5,430,265
	Interest and other	103,760	110,355
		5,093,940	5,540,620

Expenses
	Interest	656,160	727,734
	Depreciation and amortization	1,328,457	1,476,660
	Operating expenses	3,702,951	3,931,531
		5,687,568	6,135,925

NET LOSS		$ (593,628)	$ (595,305)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ (587,692)	$ (589,352)

Net loss allocated to other Partners		$ (5,936)	$ (5,953)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

Series 46

		2018	2017
Revenues
	Rental	$ 3,540,398	$ 3,464,867
	Interest and other	107,401	75,287
		3,647,799	3,540,154

Expenses
	Interest	704,861	707,913
	Depreciation and amortization	850,503	857,671
	Operating expenses	2,224,086	2,256,779
		3,779,450	3,822,363

NET LOSS		$ (131,651)	$ (282,209)

Net loss allocated to Boston Capital Tax Credit Fund IV L.P.		$ (130,334)	$ (279,387)

Net loss allocated to other Partners		$ (1,317)	$ (2,822)

The Fund accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Fund adjusts its investment cost for its share of each Operating Partnership's results of operations and for any distributions received or accrued. However, the Fund recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.

XML 28 R17.htm IDEA: XBRL DOCUMENT

ORGANIZATION (Details) - USD ($)	9 Months Ended
ORGANIZATION (Details) - USD ($)	Dec. 31, 2018	Mar. 31, 2018
Capital Unit [Line Items]
BACs Sold	83,651,080	83,651,080
Series Twenty [Member]
Capital Unit [Line Items]
Closing Date	Jun. 24, 1994
BACs Sold	3,866,700	3,866,700
Equity Raised	$ 38,667,000
Series Twenty One [Member]
Capital Unit [Line Items]
Closing Date	Dec. 31, 1994
BACs Sold	1,892,700	1,892,700
Equity Raised	$ 18,927,000
Series Twenty Two [Member]
Capital Unit [Line Items]
Closing Date	Dec. 28, 1994
BACs Sold	2,564,400	2,564,400
Equity Raised	$ 25,644,000
Series Twenty Three [Member]
Capital Unit [Line Items]
Closing Date	Jun. 23, 1995
BACs Sold	3,336,727	3,336,727
Equity Raised	$ 33,366,000
Series Twenty Four [Member]
Capital Unit [Line Items]
Closing Date	Sep. 22, 1995
BACs Sold	2,169,878	2,169,878
Equity Raised	$ 21,697,000
Series Twenty Five [Member]
Capital Unit [Line Items]
Closing Date	Dec. 29, 1995
BACs Sold	3,026,109	3,026,109
Equity Raised	$ 30,248,000
Series Twenty Six [Member]
Capital Unit [Line Items]
Closing Date	Jun. 25, 1996
BACs Sold	3,995,900	3,995,900
Equity Raised	$ 39,959,000
Series Twenty Seven [Member]
Capital Unit [Line Items]
Closing Date	Sep. 17, 1996
BACs Sold	2,460,700	2,460,700
Equity Raised	$ 24,607,000
Series Twenty Eight [Member]
Capital Unit [Line Items]
Closing Date	Jan. 29, 1997
BACs Sold	4,000,738	4,000,738
Equity Raised	$ 39,999,000
Series Twenty Nine [Member]
Capital Unit [Line Items]
Closing Date	Jun. 10, 1997
BACs Sold	3,991,800	3,991,800
Equity Raised	$ 39,918,000
Series Thirty [Member]
Capital Unit [Line Items]
Closing Date	Sep. 10, 1997
BACs Sold	2,651,000	2,651,000
Equity Raised	$ 26,490,750
Series Thirty One [Member]
Capital Unit [Line Items]
Closing Date	Jan. 18, 1998
BACs Sold	4,417,857	4,417,857
Equity Raised	$ 44,057,750
Series Thirty Two [Member]
Capital Unit [Line Items]
Closing Date	Jun. 23, 1998
BACs Sold	4,754,198	4,754,198
Equity Raised	$ 47,431,000
Series Thirty Three [Member]
Capital Unit [Line Items]
Closing Date	Sep. 21, 1998
BACs Sold	2,636,533	2,636,533
Equity Raised	$ 26,362,000
Series Thirty Four [Member]
Capital Unit [Line Items]
Closing Date	Feb. 11, 1999
BACs Sold	3,529,319	3,529,319
Equity Raised	$ 35,273,000
Series Thirty Five [Member]
Capital Unit [Line Items]
Closing Date	Jun. 28, 1999
BACs Sold	3,300,463	3,300,463
Equity Raised	$ 33,004,630
Series Thirty Six [Member]
Capital Unit [Line Items]
Closing Date	Sep. 28, 1999
BACs Sold	2,106,838	2,106,838
Equity Raised	$ 21,068,375
Series Thirty Seven [Member]
Capital Unit [Line Items]
Closing Date	Jan. 28, 2000
BACs Sold	2,512,500	2,512,500
Equity Raised	$ 25,125,000
Series Thirty Eight [Member]
Capital Unit [Line Items]
Closing Date	Jul. 31, 2000
BACs Sold	2,543,100	2,543,100
Equity Raised	$ 25,431,000
Series Thirty Nine [Member]
Capital Unit [Line Items]
Closing Date	Jan. 31, 2001
BACs Sold	2,292,151	2,292,151
Equity Raised	$ 22,921,000
Series Forty [Member]
Capital Unit [Line Items]
Closing Date	Jul. 31, 2001
BACs Sold	2,630,256	2,630,256
Equity Raised	$ 26,269,256
Series Forty One [Member]
Capital Unit [Line Items]
Closing Date	Jan. 31, 2002
BACs Sold	2,891,626	2,891,626
Equity Raised	$ 28,916,260
Series Forty Two [Member]
Capital Unit [Line Items]
Closing Date	Jul. 31, 2002
BACs Sold	2,744,262	2,744,262
Equity Raised	$ 27,442,620
Series Forty Three [Member]
Capital Unit [Line Items]
Closing Date	Dec. 31, 2002
BACs Sold	3,637,987	3,637,987
Equity Raised	$ 36,379,870
Series Forty Four [Member]
Capital Unit [Line Items]
Closing Date	Apr. 30, 2003
BACs Sold	2,701,973	2,701,973
Equity Raised	$ 27,019,730
Series Forty Five [Member]
Capital Unit [Line Items]
Closing Date	Sep. 16, 2003
BACs Sold	4,014,367	4,014,367
Equity Raised	$ 40,143,670
Series Forty Six [Member]
Capital Unit [Line Items]
Closing Date	Dec. 19, 2003
BACs Sold	2,980,998	2,980,998
Equity Raised	$ 29,809,980

XML 29 R18.htm IDEA: XBRL DOCUMENT

ORGANIZATION (Details Textual)	1 Months Ended
ORGANIZATION (Details Textual)	Jul. 31, 2003 BACs	Jul. 31, 2002 BACs	Jul. 31, 2001 BACs	Jul. 31, 2000 BACs	Aug. 31, 1999 BACs	Apr. 30, 1998 BACs	Apr. 30, 1996 BACs	Dec. 31, 1993 BACs
Organization And Summary Of Significant Accounting Policy [Line Items]
Limited Partners Capital Account Per Units								10
Units of limited partnership interest, authorized								30,000,000
Limited Partners Capital Account Additional Units Registered For Sale	7,000,000	7,000,000	7,000,000	7,500,000	8,000,000	25,000,000	10,000,000

XML 30 R19.htm IDEA: XBRL DOCUMENT

RELATED PARTY TRANSACTIONS (Details) - USD ($)	3 Months Ended
RELATED PARTY TRANSACTIONS (Details) - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Related Party Transaction [Line Items]
Gross Fund Management Fee	$ 465,131	$ 572,291
Series Twenty [Member]
Related Party Transaction [Line Items]
Gross Fund Management Fee	2,549	5,536
Series Twenty One [Member]
Related Party Transaction [Line Items]
Gross Fund Management Fee	0	2,216
Series Twenty Two [Member]
Related Party Transaction [Line Items]
Gross Fund Management Fee	6,426	7,303
Series Twenty Three [Member]
Related Party Transaction [Line Items]
Gross Fund Management Fee	5,556	5,556
Series Twenty Four [Member]
Related Party Transaction [Line Items]
Gross Fund Management Fee	10,761	12,588
Series Twenty Five [Member]
Related Party Transaction [Line Items]
Gross Fund Management Fee	0	0
Series Twenty Six [Member]
Related Party Transaction [Line Items]
Gross Fund Management Fee	13,938	15,609
Series Twenty Seven [Member]
Related Party Transaction [Line Items]
Gross Fund Management Fee	7,635	8,915
Series Twenty Eight [Member]
Related Party Transaction [Line Items]
Gross Fund Management Fee	7,296	8,844
Series Twenty Nine [Member]
Related Party Transaction [Line Items]
Gross Fund Management Fee	7,261	20,547
Series Thirty [Member]
Related Party Transaction [Line Items]
Gross Fund Management Fee	5,668	12,609
Series Thirty One [Member]
Related Party Transaction [Line Items]
Gross Fund Management Fee	16,065	19,092
Series Thirty Two [Member]
Related Party Transaction [Line Items]
Gross Fund Management Fee	19,794	23,234
Series Thirty Three [Member]
Related Party Transaction [Line Items]
Gross Fund Management Fee	13,318	15,654
Series Thirty Four [Member]
Related Party Transaction [Line Items]
Gross Fund Management Fee	12,365	12,365
Series Thirty Five [Member]
Related Party Transaction [Line Items]
Gross Fund Management Fee	10,653	10,653
Series Thirty Six [Member]
Related Party Transaction [Line Items]
Gross Fund Management Fee	5,172	7,626
Series Thirty Seven [Member]
Related Party Transaction [Line Items]
Gross Fund Management Fee	0	10,957
Series Thirty Eight [Member]
Related Party Transaction [Line Items]
Gross Fund Management Fee	16,581	18,234
Series Thirty Nine [Member]
Related Party Transaction [Line Items]
Gross Fund Management Fee	0	1,712
Series Forty [Member]
Related Party Transaction [Line Items]
Gross Fund Management Fee	23,390	26,594
Series Forty One [Member]
Related Party Transaction [Line Items]
Gross Fund Management Fee	34,076	49,564
Series Forty Two [Member]
Related Party Transaction [Line Items]
Gross Fund Management Fee	23,847	40,788
Series Forty Three [Member]
Related Party Transaction [Line Items]
Gross Fund Management Fee	45,090	55,612
Series Forty Four [Member]
Related Party Transaction [Line Items]
Gross Fund Management Fee	57,826	57,825
Series Forty Five [Member]
Related Party Transaction [Line Items]
Gross Fund Management Fee	67,565	70,359
Series Forty Six [Member]
Related Party Transaction [Line Items]
Gross Fund Management Fee	$ 52,299	$ 52,299

XML 31 R20.htm IDEA: XBRL DOCUMENT

RELATED PARTY TRANSACTIONS (Details 1) - USD ($)	9 Months Ended
RELATED PARTY TRANSACTIONS (Details 1) - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Related Party Transaction [Line Items]
Fund management fees paid	$ 5,841,912	$ 8,519,859
Series Twenty [Member]
Related Party Transaction [Line Items]
Fund management fees paid	378,835	0
Series Twenty One [Member]
Related Party Transaction [Line Items]
Fund management fees paid	0	258,000
Series Twenty Two [Member]
Related Party Transaction [Line Items]
Fund management fees paid	202,998	0
Series Twenty Three [Member]
Related Party Transaction [Line Items]
Fund management fees paid	435,802	488,550
Series Twenty Four [Member]
Related Party Transaction [Line Items]
Fund management fees paid	32,283	37,764
Series Twenty Five [Member]
Related Party Transaction [Line Items]
Fund management fees paid	0	11,374
Series Twenty Six [Member]
Related Party Transaction [Line Items]
Fund management fees paid	43,485	60,699
Series Twenty Seven [Member]
Related Party Transaction [Line Items]
Fund management fees paid	22,905	33,438
Series Twenty Eight [Member]
Related Party Transaction [Line Items]
Fund management fees paid	23,436	26,532
Series Twenty Nine [Member]
Related Party Transaction [Line Items]
Fund management fees paid	519,601	0
Series Thirty [Member]
Related Party Transaction [Line Items]
Fund management fees paid	523,527	0
Series Thirty One [Member]
Related Party Transaction [Line Items]
Fund management fees paid	51,692	62,490
Series Thirty Two [Member]
Related Party Transaction [Line Items]
Fund management fees paid	787,880	1,184,057
Series Thirty Three [Member]
Related Party Transaction [Line Items]
Fund management fees paid	206,940	0
Series Thirty Four [Member]
Related Party Transaction [Line Items]
Fund management fees paid	150,000	430,691
Series Thirty Five [Member]
Related Party Transaction [Line Items]
Fund management fees paid	31,959	597,597
Series Thirty Six [Member]
Related Party Transaction [Line Items]
Fund management fees paid	18,788	790,383
Series Thirty Seven [Member]
Related Party Transaction [Line Items]
Fund management fees paid	526,729	1,574,732
Series Thirty Eight [Member]
Related Party Transaction [Line Items]
Fund management fees paid	69,630	1,570,687
Series Thirty Nine [Member]
Related Party Transaction [Line Items]
Fund management fees paid	0	938,915
Series Forty [Member]
Related Party Transaction [Line Items]
Fund management fees paid	225,000	93,700
Series Forty One [Member]
Related Party Transaction [Line Items]
Fund management fees paid	520,930	70,500
Series Forty Two [Member]
Related Party Transaction [Line Items]
Fund management fees paid	80,686	126,528
Series Forty Three [Member]
Related Party Transaction [Line Items]
Fund management fees paid	566,306	0
Series Forty Five [Member]
Related Party Transaction [Line Items]
Fund management fees paid	242,500	0
Series Forty Six [Member]
Related Party Transaction [Line Items]
Fund management fees paid	$ 180,000	$ 163,222

XML 32 R21.htm IDEA: XBRL DOCUMENT

RELATED PARTY TRANSACTIONS (Details Textual)	9 Months Ended
RELATED PARTY TRANSACTIONS (Details Textual)	Dec. 31, 2018
Related Party Transaction [Line Items]
Percentage Of Annual Management Fee	0.50%

XML 33 R22.htm IDEA: XBRL DOCUMENT

INVESTMENTS IN OPERATING PARTNERSHIPS (Details) - Number	Dec. 31, 2018	Dec. 31, 2017
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	132	179
Series Twenty [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	0	2
Series Twenty One [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	0	0
Series Twenty Two [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	0	3
Series Twenty Three [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	0	3
Series Twenty Four [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	4	6
Series Twenty Five [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	0	0
Series Twenty Six [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	8	9
Series Twenty Seven [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	3	3
Series Twenty Eight [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	4	5
Series Twenty Nine [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	5	8
Series Thirty [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	0	6
Series Thirty One [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	1	8
Series Thirty Two [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	5	6
Series Thirty Three [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	3	4
Series Thirty Four [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	4	4
Series Thirty Five [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	2	2
Series Thirty Six [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	2	3
Series Thirty Seven [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	0	1
Series Thirty Eight [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	3	4
Series Thirty Nine [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	0	0
Series Forty [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	8	9
Series Forty One [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	11	14
Series Forty Two [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	9	13
Series Forty Three [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	14	18
Series Forty Four [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	7	7
Series Forty Five [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	25	27
Series Forty Six [Member]
Number Of Operating Partnerships [Line Items]
Number Of Operating Partnerships	14	14

XML 34 R23.htm IDEA: XBRL DOCUMENT

INVESTMENTS IN OPERATING PARTNERSHIPS (Details 1) - USD ($)	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2017
Contributions Payable [Line Items]
Capital contributions payable	$ 44,094	$ 176,746	$ 186,846
Series Twenty Nine [Member]
Contributions Payable [Line Items]
Capital contributions payable	785	885	8,235
Series Thirty [Member]
Contributions Payable [Line Items]
Capital contributions payable	0	65,176	65,176
Series Thirty One [Member]
Contributions Payable [Line Items]
Capital contributions payable	25,000	66,294	66,294
Series Thirty Two [Member]
Contributions Payable [Line Items]
Capital contributions payable	1,229	1,229	1,229
Series Thirty Three [Member]
Contributions Payable [Line Items]
Capital contributions payable	0	0	2,650
Series Forty [Member]
Contributions Payable [Line Items]
Capital contributions payable	102	102	102
Series Forty One [Member]
Contributions Payable [Line Items]
Capital contributions payable	0	0	100
Series Forty Two [Member]
Contributions Payable [Line Items]
Capital contributions payable	254	254	254
Series Forty Three [Member]
Contributions Payable [Line Items]
Capital contributions payable	0	26,082	26,082
Series Forty Five [Member]
Contributions Payable [Line Items]
Capital contributions payable	$ 16,724	$ 16,724	$ 16,724

XML 35 R24.htm IDEA: XBRL DOCUMENT

INVESTMENTS IN OPERATING PARTNERSHIPS (Details 2)

9 Months Ended

Dec. 31, 2018

USD ($)

Number

Dec. 31, 2017

USD ($)

Number

Operating Partnership Interest Transferred | Number

$ 2,954,134

^[1]

$ 11,061,047

^[2]

$ 3,086,786

$ 11,305,952

Series Twenty [Member]

Operating Partnership Interest Transferred | Number

$ 197,337

^[1]

$ 42,000

^[2]

Series Twenty One [Member]

197,337

$ 42,000

Operating Partnership Interest Transferred | Number

$ 0

$ 67,000

^[2]

Series Twenty Two [Member]

67,000

Operating Partnership Interest Transferred | Number

$ 38,000

^[1]

$ 0

Series Twenty Three [Member]

$ 38,000

Operating Partnership Interest Transferred | Number

$ 43,500

^[1]

$ 989,962

^[2]

Series Twenty Four [Member]

$ 43,500

989,962

Operating Partnership Interest Transferred | Number

$ 23,678

^[1]

$ 0

Series Twenty Five [Member]

23,678

Operating Partnership Interest Transferred | Number

$ 0

$ 97,399

^[2]

Series Twenty Six [Member]

$ 97,399

Operating Partnership Interest Transferred | Number

$ 10,500

^[1]

$ 80,000

^[2]

Series Twenty Seven [Member]

10,500

$ 80,000

Operating Partnership Interest Transferred | Number

$ 0

$ 3,291,567

^[2]

Series Twenty Eight [Member]

3,291,567

Operating Partnership Interest Transferred | Number

$ 8,500

^[1]

Series Twenty Nine [Member]

$ 8,500

Operating Partnership Interest Transferred | Number

$ 122,994

^[1]

$ 0

$ 123,094

Series Thirty [Member]

Operating Partnership Interest Transferred | Number

$ 130,006

^[1]

$ 226,021

^[2]

Series Thirty One [Member]

$ 195,182

$ 265,984

Operating Partnership Interest Transferred | Number

$ 64,500

^[1]

$ 45,000

^[2]

Series Thirty Two [Member]

$ 105,794

$ 45,000

Operating Partnership Interest Transferred | Number

$ 487,880

^[1]

$ 1,677,252

^[2]

Series Thirty Three [Member]

487,880

$ 1,677,252

Operating Partnership Interest Transferred | Number

$ 950

^[2]

Series Thirty Five [Member]

$ 67,454

Operating Partnership Interest Transferred | Number

$ 0

$ 2,653,528

^[2]

Series Thirty Six [Member]

2,653,528

Operating Partnership Interest Transferred | Number

$ 253,104

^[1]

$ 0

Series Thirty Seven [Member]

$ 253,104

Operating Partnership Interest Transferred | Number

$ 1,062,375

^[1]

$ 1,977

^[2]

Series Thirty Eight [Member]

$ 1,062,375

140,415

Operating Partnership Interest Transferred | Number

$ 7,000

^[1]

$ 0

Series Thirty Nine [Member]

7,000

Operating Partnership Interest Transferred | Number

$ 0

$ 17,779

^[2]

$ 17,779

Series Forty [Member]

Operating Partnership Interest Transferred | Number

$ 44,500

^[1]

$ 588,952

^[2]

Series Forty One [Member]

$ 44,500

$ 588,952

Operating Partnership Interest Transferred | Number

$ 14,000

^[1]

$ 782,887

^[2]

Series Fourty Two [Member]

$ 14,000

$ 782,887

Operating Partnership Interest Transferred | Number

$ 54,322

^[1]

$ 262,279

^[2]

Series Forty Three [Member]

$ 54,322

$ 262,279

Operating Partnership Interest Transferred | Number

$ 49,438

^[1]

$ 225,500

^[2]

Series Forty Five [Member]

$ 75,520

225,500

Operating Partnership Interest Transferred | Number

$ 342,500

^[1]

$ 0

Series Forty Six [Member]

342,500

Operating Partnership Interest Transferred | Number

$ 0

$ 10,994

^[2]